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Tribometers are used to assess the potential of humans to slip while walking on various surfaces. A new ASTM International test method will be used to provide a reference standard against which to validate and calibrate the performance of tribometers. ASTM F2508 , Practice for Validation and Calibration of Walkway Tribometers Using Reference Surfaces, has been developed by Subcommittee F13.10 on…
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ASTM International Committee F13 on Pedestrian/Walkway Safety and Footwear is currently working on a proposed new standard for footwear designed for workers who do not necessarily need safety toe shoes but could use other protection such as puncture resistance, electrical shock protection and electrical grounding. The proposed new standard, ASTM WK27855 , Specification for Performance…
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Flow characteristics of fine metal powders are important in filling dies for pressing of powder metallurgy compacts, which are later sintered and sometimes machined into finished parts. The flow rate, as measured by a new ASTM standard, determines the flow necessary for a precise quantity of powder to be introduced into the die. The new standard, B964 , Test Methods for Flow Rate of Metal Powders…
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Two recently approved ASTM International standards provide user-friendly tests for properties of sintered metallurgy products. The new standards, developed by Subcommittee B09.04 on Bearings, are ASTM B962 , Test Methods for Density of Compacted or Sintered Power Metallurgy (PM) Products Using Archimedes’ Principle, and ASTM B963 , Test Methods for Oil Content, Oil-Impregnation Efficiency and…
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A proposed new standard being developed by ASTM International Committee B09 on Metal Powders and Metal Powder Products offers a solution to the challenge of handling and characterizing very fine powders. Subcommittee B09.02 on Base Metal Powders is developing the proposed standard, WK13023 , Test Method for Determination of Tap Density of Metallic Powders by a Constant Volume Measuring Method. …
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Conventionally processed powder metallurgy materials often exhibit open microporosity at the surface. While it is a natural part of the process, this microporosity can affect the measurement of surface finishes. To cover this and other issues that arise from measuring the surface finish of powder metallurgy, ASTM International Committee B09 on Metal Powders and Metal Powder Products has developed…
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ASTM International Committee F16 on Fasteners has recently approved an important new standard that deals with coated threaded fasteners and washers by hot-dip zinc galvanizing. The standard, F 2329, Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts and Special Threaded Fasteners, is under the jurisdiction of Subcommittee…
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ASTM International Committee F16 on Fasteners has developed a new standard, F 2329, Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners. The standard, which is under the jurisdiction of Subcommittee F16.03 on Coatings on Fasteners, covers the requirements for hot-dip zinc coating applied to…
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Two new ASTM International standards, F 2412, Test Methods for Foot Protection, and F 2413, Specification for Performance Requirements for Protective Footwear, have replaced the former ANSI Z41 standard, Standard for Personal Protection Protective Footwear, which has now been withdrawn. Both of the new ASTM standards are under the jurisdiction of ASTM Committee F13 on Pedestrian/Walkway Safety…
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Dos nuevas normas internacionales de ASTM, F 2412 (Métodos de prueba para protección de los pies) y F 2413 (Especificación sobre requisitos de rendimiento para calzado de protección) reemplazan a la norma anterior, ANSI Z41 (Norma sobre calzado de protección personal), que ha sido retirada. Las dos nuevas normas de ASTM estarán bajo jurisdicción del Comité F13 de ASTM sobre calzado y seguridad de…